Smiling is the natural response that shares our happiness with others. Even many studies have proved importance of smile in our lives. Recent study from the researcher Belinda Campos from University of California has proved that smile indeed helps you strike a chord with a stranger and also maintain a good relationship with your partner. The study is published in Springer's journal Motivation and Emotion.

Campos' team conducted two studies to test the role that positive emotions, which are considered signals of affiliation and cooperation, play in relationships and showed that dating couples were able to quite accurately track their partners' positive emotions.

In the second test, people tended to feel closer to strangers who displayed positive emotions and the results showed that people are much more aware of others' positive emotions than their negative ones. Also, when finding themselves in situations where new relationships can be formed, humans tune into the positive almost instinctively. A display of awe especially draws strangers to one another.

However, do not try to fake a smile, because people can recognise a sincere smile a mile away, said the researcher Belinda Campos.

By Lizitha